supply of antiwear hydraulic oil to is: 11656/1986antiwear hydraulic oil to is: 11656/1986,antiwear hydraulic oil to is: 11656/1986/reaffirmed 2002 (with aniline point 90 degrees cen, minimum for all grades in place of seal compatibility test and nas value below 8) with rdso additional requ irement as slip no. 1 issued by rdso on august 2016. gr. vg-68. acceptable make for supply of hydraulic oi l for the use of track machines are hpcl, ioc, bharat shell, balmer lawrie, bpcl, gulf oil corporati on. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]